As Lord Voldemort tightens his grip on both the Muggle and wizarding worlds, Hogwarts is no longer a safe haven. Harry suspects perils may even lie within the castle, but Dumbledore is more intent upon preparing him for the final battle fast approaching. Together they work to find the key to unlock Voldemorts defenses and to this end, Dumbledore recruits his old friend and colleague Horace Slughorn, whom he believes holds crucial information. Even as the decisive showdown looms, romance blossoms for Harry, Ron, Hermione and their classmates. Love is in the air, but danger lies ahead and Hogwarts may never be the same again.
Unfortunately the movie Harry Potter and the Half-Blood Prince is not yet available on HBO Max.
| Production | Fiona Weir | Casting |
| Writing | J.K. Rowling | Novel |
| Production | David Heyman | Producer |
| Costume & Make-Up | Jany Temime | Costume Design |
| Camera | Bruno Delbonnel | Director of Photography |
| Production | Lionel Wigram | Executive Producer |
| Directing | David Yates | Director |
| Writing | Steve Kloves | Screenplay |
| Art | Stuart Craig | Production Design |
| Editing | Mark Day | Editor |
| Production | David Barron | Producer |
| Art | Stephenie McMillan | Set Decoration |
| Sound | Antony Bayman | ADR Recordist |
| Costume & Make-Up | Paula Eden | Prosthetic Makeup Artist |
| Sound | Andie Derrick | Foley Artist |
| Costume & Make-Up | Shaune Harrison | Prosthetic Makeup Artist |
| Sound | Peter Burgis | Foley Artist |
| Costume & Make-Up | Charlotte Rogers | Makeup Artist |
| Costume & Make-Up | Chris Lyons | Special Effects Makeup Artist |
| Sound | Ed Colyer | Foley Mixer |
| Sound | Glen Gathard | Foley Mixer |
| Sound | Robert Edwards | ADR Recordist |
| Costume & Make-Up | Sarah Weatherburn | Hairstylist |
| Sound | Peter Gleaves | ADR Mixer |
| Crew | David Holmes | Stunt Double |
| Crew | Marc Mailley | Stunts |
| Crew | Tolga Kenan | Stunts |
| Production | Simon Emanuel | Production Manager |
| Art | Neil Lamont | Supervising Art Director |
| Production | Tim Lewis | Unit Production Manager |
| Visual Effects | Emma Norton | Visual Effects Producer |
| Sound | James Mather | Supervising Sound Editor |
| Directing | Stephen Woolfenden | Second Unit Director |
| Visual Effects | Chris Shaw | Visual Effects Supervisor |
| Directing | Jamie Christopher | First Assistant Director |
| Production | Tim Lewis | Associate Producer |
| Production | John Trehy | Co-Producer |
| Production | Russell Lodge | Production Manager |
| Costume & Make-Up | Nick Dudman | Makeup Designer |
| Sound | Mike Dowson | Sound Re-Recording Mixer |
| Costume & Make-Up | Paul Spateri | Prosthetic Makeup Artist |
| Crew | Greg Powell | Stunt Coordinator |
| Art | Rosie Goodwin | Set Decoration |
| Costume & Make-Up | Sharon Nicholas | Makeup Artist |
| Visual Effects | Oliver Money | Visual Effects Producer |
| Art | Martin Foley | Art Direction |
| Costume & Make-Up | Amanda Knight | Makeup Designer |
| Visual Effects | Paul J. Franklin | Visual Effects Supervisor |
| Costume & Make-Up | Amanda Burns | Makeup Artist |
| Sound | Dominic Gibbs | Sound Effects Editor |
| Visual Effects | Paul Riddle | Visual Effects Supervisor |
| Sound | Jed Loughran | Sound Effects Editor |
| Art | Andrew Ackland-Snow | Supervising Art Director |
| Sound | Michael Fentum | Sound Effects Editor |
| Visual Effects | Charlotte Loughnane | Visual Effects Producer |
| Costume & Make-Up | Charlotte Finlay | Costume Supervisor |
| Visual Effects | Gregory Yepes | Visual Effects Supervisor |
| Sound | Andy Kennedy | Sound Effects Editor |
| Sound | Stuart Hilliker | Sound Re-Recording Mixer |
| Visual Effects | Jill Brooks | Visual Effects Producer |
| Costume & Make-Up | Vivienne Jones | Assistant Costume Designer |
| Costume & Make-Up | Aimee Lisby | Assistant Costume Designer |
| Visual Effects | Chloe Grysole | Visual Effects Producer |
| Costume & Make-Up | Rupert Steggle | Assistant Costume Designer |
| Costume & Make-Up | Lisa Tomblin | Hair Designer |
| Sound | Jamie McPhee | Sound Editor |
| Costume & Make-Up | Belinda Hodgson | Makeup Artist |
| Costume & Make-Up | Mark Coulier | Prosthetic Makeup Artist |
| Visual Effects | Gretchen Libby | Visual Effects Producer |
| Visual Effects | Dominic Sidoli | Visual Effects Producer |
| Crew | Gemma Powley | Stunts |
| Crew | Tina Maskell | Stunts |
| Crew | Alisha Smith | Stunt Double |
| Crew | Helen Steinway Bailey | Stunts |
| Crew | Jade Gordon | Stunts |
| Crew | Lucy Allen | Stunts |
| Crew | Joanna Whitney | Stunt Double |
| Crew | Joanna Whitney | Stunts |
| Crew | Gabrielle Fritz | Stunt Double |
| Crew | Nina Armstrong | Stunts |
| Crew | Donna Williams | Stunts |
| Crew | Elaine Ford | Stunts |
| Crew | Amanda Foster | Stunts |
| Crew | Charlotte Hunter | Stunt Double |
| Crew | Tilly Powell | Stunts |
| Crew | Sarah Franzl | Stunts |
| Art | Hattie Storey | Art Direction |
| Editing | Kate Baird | First Assistant Editor |
| Art | Gary Tomkins | Art Direction |
| Sound | Stuart Wilson | Production Sound Mixer |
| Sound | Nicholas Hooper | Original Music Composer |
| Art | Molly Hughes | Art Direction |
| Art | Sloane U'Ren | Art Direction |
| Art | Alastair Bullock | Art Direction |
| Editing | Hermione Byrt | First Assistant Editor |
| Art | Tino Schaedler | Art Direction |
| Camera | Jaap Buitendijk | Still Photographer |
| Directing | Anna Worley | Script Supervisor |
| Art | Rob Bliss | Concept Artist |
| Visual Effects | Ferran Domenech | Animation Supervisor |
| Directing | Matthew Sharp | Assistant Director |
| Costume & Make-Up | Richard Davies | Assistant Costume Designer |
| Visual Effects | Selwyn Eddy | Matchmove Supervisor |
| Visual Effects | Tim Burke | Visual Effects Supervisor |
| Visual Effects | John Moffatt | Visual Effects Supervisor |
| Visual Effects | Nicolas Aithadi | Visual Effects Supervisor |
| Visual Effects | John Richardson | Special Effects Supervisor |
| Visual Effects | Tim Alexander | Visual Effects Supervisor |
| Crew | Rowley Irlam | Stunts |
| Sound | Daniel Laurie | ADR Editor |
| Crew | Michael Byrch | Stunts |
| Camera | Steve Ellingworth | Key Grip |
